Drug interactions
Fosamprenavir + Saxagliptin-metformin
Severity: Moderate
Fosamprenavir and Saxagliptin-metformin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Protease inhibitors such as fosamprenavir may cause insulin resistance and hyperglycemia, which can reduce metformin effectiveness. Glycemic control may worsen over time during therapy.
What this interaction means in plain words
Fosamprenavir and Saxagliptin-metformin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Protease inhibitors induce insulin resistance and impair glucose uptake, opposing metformin's effect.
What to do
Monitor blood glucose and HbA1c regularly during therapy. Intensify antidiabetic treatment as needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fosamprenavir and Saxagliptin-metformin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Saxagliptin-metformin
Frequently asked questions
Can I take Fosamprenavir with Saxagliptin-metformin?
MediHelp rates the interaction as moderate. Fosamprenavir and Saxagliptin-metformin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Protease inhibitors such as fosamprenavir may cause insulin resistance and hyperglycemia, which can reduce metformin effectiveness. Glycemic control may worsen over time during therapy.
How serious is the interaction between Fosamprenavir and Saxagliptin-metformin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose and HbA1c regularly during therapy. Intensify antidiabetic treatment as needed.
What other medicines interact with Saxagliptin-metformin?
MediHelp also lists interactions of Saxagliptin-metformin with, for example, Atazanavir, Clozapine, Contrast media. The full list is on the Saxagliptin-metformin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
